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Updated: Jul 16, 2026
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Clinical Imaging of Microwave Mammography
Published on: November 14, 2025
Sonographic features of breast hamartomas
Tzu-Chieh Chao1, Hsiao-Hsiang Chao, Miin-Fu Chen
1Division of General Surgery, Department of Surgery, Chang Gung University College of Medicine and Chang Gung Memorial Hospital, Taoyuan, Taiwan. tcchao@adm.cgmh.org.tw
Summary
Breast hamartomas are benign breast tumors that appear as well-circumscribed, oval masses on ultrasound. Most hamartomas exhibit hyperechoic or mixed echogenicity and lack posterior acoustic features.
Area of Science:
- Radiology
- Oncology
- Pathology
Background:
- Breast hamartomas are rare, benign tumors composed of fibrous and glandular tissue.
- They can present as palpable lumps, necessitating accurate diagnostic imaging.
- Understanding their sonographic features is crucial for differentiating them from malignant lesions.
Purpose of the Study:
- To characterize the sonographic appearance of breast hamartomas.
- To identify key imaging features that aid in the diagnosis of breast hamartomas.
- To contribute to the non-invasive diagnosis of benign breast lesions.
Main Methods:
- Retrospective review of sonographic images and data from 14 confirmed breast hamartomas.
- Analysis of tumor size, shape, margins, internal echotexture, and acoustic phenomena.
- Correlation of sonographic findings with clinical presentation.
Main Results:
- All 14 breast hamartomas presented as palpable lumps.
- The tumors were predominantly oval, well-circumscribed, and compressible.
- Common sonographic findings included hyperechoic or mixed internal echotexture, with absent or subtle retrotumor acoustic phenomena.
Conclusions:
- Breast hamartomas are characterized by specific sonographic features, including well-circumscribed, solid, oval morphology.
- Internal echogenicity is typically hyperechoic or mixed.
- The absence of significant retrotumor acoustic phenomena is a common finding, aiding in their differentiation from other breast masses.
